ADHESIVE ABILITY OF GYPSUM-CONTAINING PLASTER COMPOSITIONS
DOI:
https://doi.org/10.31650/2786-6696-2024-9-55-61Keywords:
limestone-shell rock, plaster layer, ash-gypsum-cement mixture, water resistance, vapor permeability, adhesion.Abstract
The traditional material for the construction of buildings in the Northern Black Sea region is a cheap local stone ‒ limestone-shell rock. Most of the buildings in the central part of the city of Odesa, which are of historical and architectural value, are constructed of this material. With proper care and maintenance, these structures can perform their functions for hundreds of years, but as a result of shell rock moisture due to negligent operation and a number of other reasons, the supporting structures are damaged, followed by the collapse of the building. In many cases, the direct cause of the destruction of load-bearing walls is the damage or absence of the outer plaster layer. Repairing walls with cement compounds exacerbates the problem. The article discusses some aspects of the possible use of gypsum-based composite materials for repairing damaged walls of limestone-shell rock buildings. The requirements for the repair composition are formulated. The expediency of using gypsum as a binder for the repair plaster mixture for exterior repairs is substantiated. An ash-gypsum-cement composition was used to increase the water resistance of the plaster. Sufficient water resistance and vapor permeability of the proposed composition were confirmed. This paper presents the results of studying the adhesive strength of the contact of the developed composition with the surface of various materials. Methods and measuring equipment developed at the ODABA were used. The adhesion strength of the proposed mixture with the surface of shell rock is close to the standard strength. The use of the adhesive additive Ceresit CC 81 increases the adhesive strength of the joint of the proposed composition with shell rock by 1.5 ‒ 2 times. The optimal amount of the adhesive additive to be introduced will be determined by the results of a multifactorial experiment to study the effect of a complex of chemical additives of different functional purposes on the properties of the proposed repair composition.
References
[1] Lelikzvena, "Material iz glubiny vekov – rakushechnik". [Online]. Available: https://lelikzvena.livejournal.com/116186.html?ysclid=lv1873p6v6483215502 Accessed on: June 19, 2024.
[2] A.V. Novskyi, V.A. Novskyi, Yu.F. Tugaenko, Izvestnyak-rakushechnik. Issledovanie i ispol'zovanie v kachestve osnovaniya fundamentov. Odessa: Astroprint, 2014.
[3] O. Zdorov, "Kamіn' – cherepashnik, vlastivostі і osoblivostі materіalu". [Online]. Available: https://pp-budpostach.com.ua/ua/a227390-kamin-cherepashnik-vlastivosti.html. Accessed on: June 19, 2024.
[4] V. Kersh, D. Levytskyi, S. Tyhoniuk, "Repair mixture for limestone-shell buildings", Aktual'nі problemi energoresursozberezhennya ta ekologії : mіzhn. nauk.-tekhn. konf. Odesa, ODABA, 2023, pp. 76-78.
[5] Master, "Vidi, osoblivostі ta zastosuvannya shtukaturok u budіvnitstvі". [Online]. Available: https://remont.sumy.ua/types-of-plasters/ Accessed on: June 19, 2024.
[6] N. Kondratieva, M. Barre, F. Goutenoire, M. Sanytsky, "Study of modified gypsum binder", Construction and Building Materials, vol. 149, pp. 535–542, 2017.
[7] O.V. Kondrashchenko, "Gіpsovі budіvel'nі materіali pіdvishchenoї mіcnostі і vodostіjkostі (fіziko- hіmіchnі ta energetichnі osnovi)": avtoref. dis. …d-ra tekhn. nauk: 05.23.05. Harkіv: UkrDAZT, 2005.
[8] A.S. Єfіmenko, "Pіdvishchennya vodostіjkostі gіpsovih materіalіv polіfrakcіjnimi mіneral'nimi dobavkami": dis. … kand. tekhn. nauk: 05.23.05. Harkіv: UkrDUZT, 2021.
[9] P.V. Novosad, M.A. Sanytsky, O.R. Poznyak, "Pіdvishchennya vodostіjkostі gіpsovih v’yazhuchih", Vіsnik Nacіonal'nogo unіversitetu "L'vіvs'ka polіtekhnіka". Serіya: Teorіya і praktika budіvnictva, no. 888, pp. 111–116, 2018.
[10] J. Li, G. Li, Y. Yu, "The influences of gypsum water-proofing additive on gypsum crystal growth", Materials Letters, no. 61, pp. 872-876, 2007.
[11] V.N. Kavardakov, "Sposoby povysheniya prochnosti i vodostojkosti kompozicionnyh gipsovyh smesej", Aktual'nye issledovaniya, no. 8, pp. 33-37, 2020.
[12] M.I. Khaliullin, R.Z. Rakhimov, A.R. Gayfullin, "Composite gypsum binders of higher water resistance with an active mineral additive-claydite dust", Non-Traditional Cement & Concrete IV Proceedings of the International Conference. Brno, 2011, pp. 331-337.
[13] V.Ya. Kersh, D.V. Levitskyi, S.A. Tihoniuk, "Remontna kompozicіya dlya stіnovih konstrukcіj budіvel' z cherepashniku", Zbіrnik tez dopovіdej VI Vseukraїns'koї naukovo-praktichnoї іnternet-konferencії "Rozvitok budіvnictva ta zhitlovo-komunal'nogo gospodarstva v suchasnih umovah". Kiїv, 2023, pp.15-17.
[14] V.Ya. Kersh, D.V. Levitskyi, S.A. Tihoniuk, "Doslіdzhennya paroproniknostі shtukaturnogo skladu", Zbіrnik tez dopovіdej 80-ї naukovo-tekhnіchnoї konferencії profesors'ko-vikladac'kogo skladu akademії. Odesa, ODABA, 2024, p. 13.
[15] M.D. Timochko, "Аdgeziya: chto eto takoe, dlya chego nuzhna, kak eyo uluchshit'". [Online]. Available: https://vue.gov.ua/%D0%90%D0%B4%D0%B3%D0%B5%D0%B7%D1%96%D1%8F Accessed on: July 17, 2024.
[16] DSTU-N B A.3.1-23:2013. Nastanova shchodo provedennya robіt z ulashtuvannya іzolyacіjnih, ozdoblyuval'nih, zahisnih pokrittіv stіn, pіdlog і pokrіvel' budіvel' і sporud. K.: Mіnregіonbud Ukraїni, 2013.
[17] DSTU-N B V.2.6-212:2016. Nastanova z vikonannya robіt іz zastosuvannyam suhih budіvel'nih sumіshej. K.: NDІBV, 2016.
[18] V.A. Voznesenskij, T.V. Lyashenko, Ya.P. Ivanov, I.I. Nikolov, EVM i optimizaciya kompozicionnyh materialov. K.: Budivel'nik, 1989.
[19] "Adgezіjna dobavka Ceresit-SS-81". Tekhnіchnij opis. [Online]. Available: https://dm.henkel-dam.com/is/content/henkel/ceresit-cc-81-2021-new Accessed on: July 17, 2024.
Downloads
Published
Issue
Section
License
Copyright (c) 2024 MODERN CONSTRUCTION AND ARCHITECTURE
This work is licensed under a Creative Commons Attribution 4.0 International License.
